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Making movies isn't all flying through the air and dying in a pool of blood—there is a lot of sitting around. As a result, actors are some of the biggest pranksters around (YOU WOULD BE TOO IF YOU HAD TO SIT FOR FOUR HOURS WHILE SOMEONE PAINTED YOUR BUTT BLUE).

HEREWITH, we look at the biggest pranksters in Tinseltown (we would kill for Paul Rudd to put a "kick me" sign on our back, not kidding in the least).